public class Application {
     	public static void main(String args[]) {
		MobileTelephone telephone = new MobileTelephone ();
	  	SIM sim=new SIMOfChinaMobile();
     		sim.setNumber("13887656432");
      		telephone.useSIM(sim);
		telephone.showMess();
	  	sim=new SIMOfChinaUnicom();
    		sim.setNumber("13097656437");
     		telephone.useSIM(sim);
		telephone.showMess();
    	}
}
